Wittich & Visser bv products

The DD windvane and DS cup anemometer from Wittich & Visser are light weight instruments for measuring wind speed and wind direction contact free. The sensors use a well accepted measuring principle and profit from digital techniques: a perfect combination of traditional and modern concepts. Both sensors are ideal for agro-meteorology, greenhouse automation, HVAC, safety guard regulations, etc.

The PA2 series cup anemometers and PRV potentiometer windvanen from Wittich & Visser are light weight instruments for measuring wind speed and wind direction. Both sensors are ideal for agro-meteorology, greenhouse automation, HVAC, safety guard regulations, etc.

Electronic measuring sensor Series 3311 serves for electrical transmission of the absolute atmospheric pressure.

Aneroid precision barometer model 103 for the measurement of absolute atmospheric pressure. Precision aneroid barometers are used for measuring the absolute atmospheric pressure. Because of the excellent instrument properties an aneroid barometer is indispensable particularly for meteorology, ocean shipping, industry and research.

The HP21 is the ideal instrument for humidity and temperature measurements in simple applications. The integrated HC2 probe guarantees measuring results of the highest accuracy.

The HygroPalm 22 is the latest development in handheld measuring instruments for humidity, temperature and dew point.

Thermohygrograph for recording ambient temperature. Temperature sensor is a high-grade bimetal that is recording temperatures on the drum through a pointer mechanism. The case is made of white coated aluminum die casting and removable upper part with crystal-clear Macrolon panoramic hood. All parts have been manufactures from corrosion-resistant materials.

The RSA is a rain sensor with a processor controlled relay contact and surface temperature control and is ideal for climate control systems such as sun blinds and greenhouse automation.

The rain alarm consists of a sensor model RSG-4 and a signal converter model 8RA-4 and provides a switch-over contact when it rains. The sensor is gold-plated and corrosion resistant. Heating elements in the sensor prevents unintended alarm when there is heavy mist or dew. The sensitivity of the switch-over contact is adjustable on the signal converter. The unit is used to open and close windows or greenhouses.